Bench-vise.



H.B.SEYMOUR;DEUD. M. E. SEYMOUR, ADMINISTRATHIX.

BENCH VISE. I APPLICATION FILED APR. 30 1915.

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M Na K HI n M l5 \6 I i 1 (20 u J' WQ VDOL H E3 SEYMOUR WW 0 w E I Patented July 11, 1916. I I

"UMTED srrn'rns PATENT orrion.

HERBERT B. SEYMOUR, OF DENVER, COLORADO; MATTIE E. SEYMOUR ADMINISTRA- TRIX OF SAID HERBERT B. SEYMOUR, DECEASED.

BENCH-VISE.

Application filed April 30, 1915.

To all whom it may concern:

Be it known that I, HERBERT B. SEY MOUR, a citizen of the United States, res1d1ng at Denver, in the county of Denver, State of Colorado, have invented certain new and useful Improvements in Bench-Vises; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a bench vise.

An object of the invention resides in the provision of a device that will be easily and quickly operated to clamp and release the work.

A further object of the invention resides in so constructing the device that the power will be equalized to clamp uneven work.

A further object of the invention resides in so constructing the device that it may be easily adjusted for various thicknesses of work.

With these and other objects in view, such as will appear as the description progresses, my invention comprises the combination and arrangement of parts as set forth in the appended claim.

Referring to the drawing: Figure 1 is a side elevation of a vise constructed in accordance with my invention, showing a portion of a bench to which it is atttached- Fig. 2 is a section on line 22 of 1. Fig. 3 is a section on line 33 of Fig, 2. Fig. 4 is a fragmental detail of the lockmg means.

Referring to the drawing wherein like parts are designated by like characters throughout the several views: In the drawing, I have shown a bench which consists of a top 1 supported by legs 2. Pivotally mounted at 8 on an extension 4 on one leg 2 is a clamping jaw 5. This jaw cooperates with an end piece 6 on the bench to form a vise. The upper end of the jaw 5 is -nor mally pressed away from the piece 6 by a coil spring which encircles a rod 8 which extends through the jaw and through the piece 6 and one leg 2, the rod 8 being slidably mounted in the piece 6 and leg 2.

In order that the jaw 5 may be drawn to- Specification of Letters Patent.

Patented July 11, 1916.

Serial No. 24,954.

ward the piece 6, I have provided the following mechanism: Secured to the adjacent leg 2 by bolts 9 is a shaft 10 having pulleys 11 mounted on the ends thereof. Passing over these pulleys 11 are chains 12 which are secured to the clamping jaw 5 by hooks 13. These chains are also secured to an equalizing yoke 14 which extends between the chains. An additional chain 15 is secured to the yoke 14 and held in a notch 16 therein. This chain 15 depends from the yoke. A foot lever 17 is pivoted on a pin 18 which extends into the adjacent leg 2 and the outer end of which is supported by a bracket 19. Secured to this lever 17 is a hook 20 which is adapted to engage any of 'a plurality of the links of the chain 15 to vary the opening of the jaw 5. The free end of the lever 17 is slidable on a supplemental leg 21' on the bench which is secured to a cleat 22. A rack 23 is mounted on the leg 21. and coiiperates with a plate 24 on the lever 17, which plate is adapted to engage the teeth of the rack to maintain the lever in its adjusted position. The rack is so constructed that the lever will be allowed to move downwardly, freely, but will be prevented from moving upwardly until the plate 24 is-released from the teeth of the rack.

In using the device, the upper end of the jaw 5 being in its outermost position, the work is placed between the said end and the piece 6 in the usual manner. At this time the free end of the lever 17 will be raised. The operator places his foot on the lever 4, presses downwardly, the plate 24 riding over the teeth of the rack 23. Where the work is tightly clamped the operator may remove his foot and the engagement of the plate and the rack will prevent the outward movement of the jaw 5. Now when it is desired to release the work it is only-necessary to release the plate 24 and the spring 7 will move the aw 5 outwardly, automatically. Now should the work be tapered, or otherwise uneven, it will be perfectly clamped because of the fact that one of the chains 12 will draw tighter than the other to allow for said unevenness.

From the foregoing description it will be seen that I have provided a bench vise Which chain connected to the yoke and adjustably will be efi'ective to clamp uneven Work With connected to the lever, 10 equal pressure throughout. In testimony whereof, I atfix my signa- WVhat I claim is ture, in the presence of two Witnesses. In a bench vise, a clamping jaw, a pair of HERBERT B. SEYMOUR. tightening chains secured thereto, a yoke Witnesses: extending between said chains and connect- J OHN C. MURRAY, ed to the same, a lever, and an additional VIRGINIA MOORE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

